SN74LVC1T45DBVRG4

Translators, Level Shifters Overview

The SN74LVC1T45DBVRG4 is a single-bit dual-supply bus transceiver from the Texas Instruments SN74LVC1T45 series. It operates with VCCA and VCCB supply voltages ranging from 1.65V to 5.5V, enabling universal low-voltage bidirectional translation between 1.8V, 2.5V, 3.3V, and 5V nodes. The device features a propagation delay of 17.7ns and supports data rates up to 420Mbps at 3.3V to 5V conversion. It utilizes an SOT-23-6 package and functions within a temperature range of -40°C to +85°C.

Translators, Level Shifters Feature Summary

• Configurable dual-rail design allows independent operation of A and B ports across the full voltage range
• Ioff circuit disables outputs to prevent damaging current backflow during partial power-down applications
• VCC isolation ensures both ports enter high-impedance state if either supply input is grounded

Translators, Level Shifters Applications

• Asynchronous communication between two data buses operating at different logic levels
• Low-voltage bidirectional level shifting in portable and battery-powered systems
• Partial power-down mode operations requiring output isolation upon power loss

Translators, Level Shifters Procurement Notes

Verify that the ordering suffix G4 confirms RoHS compliance and manufacturing standards consistent with the standard SN74LVC1T45DBVR variant. Confirm the package designation remains SOT-23-6. Ensure the component matches the specific datasheet revision for the target application requirements before finalizing procurement orders.

Translators, Level Shifters Selection Notes

Select this component when a single-channel bidirectional translator is required for mixed-voltage interfaces. The LVC series offers lower power consumption compared to older families while maintaining high-speed performance. Verify that the DIR control signal is referenced to VCCA to ensure correct directionality logic for the specific system architecture.

Translators, Level Shifters Part Context

This part belongs to the SN74LVC1T45 family of single-bit dual-supply bus transceivers. It serves as a bridge for interfacing digital components with different voltage domains. The device is designed for general-purpose low-voltage applications where space-saving packaging and flexible voltage compatibility are critical design constraints.

Translators, Level Shifters Replacement Considerations

The SN74LVC1T45DBVR is the primary equivalent without the G4 suffix. Other package variants such as SN74LVC1T45DCKT or SN74LVC1T45DRLR offer identical electrical functionality but require footprint adaptation.